>> always scorching in gilroy. >> "cbs evening news with scott pelley" is next. good night. captions by: caption colorado comments@captioncolorado.com captioning sponsored by cbs >> pelley: the charges are dropped. the prosecutor gives up trying to convict baltimore cops in the death of freddie gray, but defends her case against them. >> we do not believe that freddie gray killed himself. >> pelley: also tonight-- >> mr. president. ( gunfire ). >> pelley: a judge orders president reagan's would-be assassin released from a psychiatric hospital. we'll have reaction from the reagan family. trump tries to enlist the russians to help against clinton. >> russia, if you're listening, i hope you're able to find the 30,000 e-mails that are missing. >> pelley: and it was more than a gimmick. the ice bucket challenge leads to an important medical discovery.

this is the "cbs evening news" with scott pelley. reporting tonight from the democratic national convention in philadelphia. this is our western edition. just hours after an address to this convention by mothers who lost children to violence, some at the hands of police, criminal charges were dropped in baltimore today in the death of freddie gray. gray's neck was mysteriously broken in a police van that was not involved in an accident. riots in baltimore calmed after six police officers were charged, but now after four trials and no convictions, the prosecutor conceded today it would be impossible to convict any of the cops. jeff pegues is in baltimore. >> reporter: baltimore's top prosecutor marilyn mosby had a small group of supporters behind her, and a divided city beyond, waiting for her to explain why

she dropped the charges. >> for those that believe i'm antipolice, it's simply not the case. i'm antipolice brutality, and i need not-- >> reporter: she was unapologetic and at times defiant. >> for over a year, my office has been forced to remain silent in all six of the cases pertaining to and surrounding the death of freddie gray. despite being physically and professionally threatened, mocked, ridiculed, harassed, and even sued. >> reporter: freddie gray died in 2015 after he was arrested hed put in the back of a police van. he was handcuffed, shack not seat-belted in. he suffered a spinal cord injury while being transported to jail. what followed was several days of unrest and violence. six officers were charged in connection with his death. the first trial ended in a hung jury. three others trials were heard by a judge who found the officers not guilty. in one case he ruled that simply

failing to seat belt a prisoner was not inherently criminal conduct. mosby acknowledged that the next trial would likely lead to the same outcome. >> the judge, who is within his right, has made it clear that he doesn't agree with the state's theory of the case. >> reporter: mosby argued today that the case reflects the reality of the justice system. >> unlike with other cases where prosecutors work closely with the police to investigate what actually occurred, what we realized very early on in this case that was police investigating police, whether they're friends or merely their colleagues, was problematic. >> reporter: in a statement, baltimore's police commissioner kevin davis called the investigation transparent, and says it was conducted by over 30 ethical, experienced, and talented detectives. gene ryan is the president of the fraternal order of police in baltimore. >> the state's attorney simply could not accept the evidence that was presented. she had her own agenda.

the comments made today about our officers by miss mosby were outrageous and uncalled for, and simply not true. >> reporter: mosby says she regrets not being able to hold anyone accountable. >> we do not believe that freddie gray killed himself. >> reporter: four of the six officers have gone back to work. scott, there is an administrative review hanging over all of the officers that could lead to dismissals. >> pelley: jeff pegues, thanks. today, a federal judge ruled that john hinckley jr., the man who shot president ronald reagan, will be allowed to leave a mental hospital to live with his mother. hinckley is now 61, and the judge said his mental health has improved dramatically. now more with chip reid. >> reporter: on march 30, 1981, john hinckley attempted to assassinate president ronald reagan outside the washington

hilton hotel. ( gunfire ) >> reporter: he hospital, reagan told the surgeons he hoped they were republicans and told wife nancy, "honey, i forgot to duck." in fact, though, it was far from funny. the bullet stopped less than an inch from his heart. three others were also wounded, including press secretary jim brady who sustained a severe brain injury. hinckley said he wanted to kill the president to impress actress jodie foster after seeing her in the movie "taxi driver." hinckley was found not guilty by reason of insanity, and for 35 years, he's lived under court supervision at a mental hospital in washington, d.c. the court has allowed hinckley frequent visits to the home of his 90-year-old mother in williamsburg, virginia. and today, federal judge paul friedman ruled that hinckley will soon be set free to live with her full time. the judge found that hinckley's mental illness is in remission, and that he has shown no signs of psychotic symptoms,

delusional thinking or any violentendencies. tim mccarthy, police chief of orland, illinois, is the former secret service agent who might have saved reagan's life that day by taking a bullet himself. >> i'm very concerned and i hope they're right. if they let him out and he's not going to injure anyone else. >> reporter: in a tweet, reagan's son michael said, "my father did more than say the lord's prayer. he lived it in forgiving john hinckley jr. maybe we should do the same." hinckley is expected to leave this hospital some time in early august, but, scott, the judge imposed a long list of conditions, including no weapons, no talking to the media, and no skipping out on his mental health care appointments and if he does miss any of those conditions he could end up right back here. >> pelley: chip reid, thank you. well, donald trump is doing all he can to steal the spotlight from the democrats during their convention. he called a news conference in miami today, and major garrett was there.

>> russia, if you're listening, i hope you're able to find the 30,000 e-mails that are missing. i think you will probably be rewarded mightily by our press. >> reporter: that's a reference to e-mails sent and received from hillary clinton's non- secured, unauthorized private server when she was secretary of state. f.b.i. director james comey described her conduct as extremely careless but did not support filing criminal charges. trump's call for russian meddling comes as u.s. ustelligence officials suspect moscow of hacking more than 19,000 e-mails from the democratic national committee. e-mails showing internal discussions critical of bernie sanders and supportive of clinton. moments after trump spoke, his running mate, mike pence, promised serious consequences if russia interfered in the election. this appeared to contradict trump's call for russian cyber tampering. intensifying the drama, a spokesman for house speaker paul ryan called russia "a global

menace led by a devious thug that should stay out of american politics." u.s. officials can't any give a motive for the hack but the clinton camp suggested it might have been done to help trump, a theory the g.o.p. nominee swiftly rejected. >> i have nothing to do with russia. what do i have to get involved with putin for? i have nothing to do with putin. i have never spoken to him. i don't know anything about him. >> reporter: in 2014 trump said he had spoken with putin and said putin could not have been nicer and then trump said this during a g.o.p. debate last fall: >> and i got to know him very well because we were both on "60 minutes." we were stablemates and we did very well that night. >> reporter: trump scoffed at the controversy as he tried to demonstrate political muscle in the home town of vice president joe biden here in scranton. scott, in lackawanna county, presidential turnout in the primary favored democrats two to one. even so, trump loyalists started lining up seven hours early for a trump rally that attracted more than 5,000. >> pelley: major, donald trump

also said in that news conference that hillary clinton's running mate tim kaine had done a poor job for the state of new jersey. kaine, of course, represents virginia. now we have the reaction to trump from the clinton campaign, and nancy cordes has that. >> she does not view this as a political issue. she views this as a national security issue. >> reporter: clinton senior policy adviser jake sullivan slammed trump's proposal to putin saying in a statement, >> test, one, two. test, one, two. >> reporter: trump's foreign policy views are sure to come up tonight when virginia senator tim kaine takes the convention stage. clinton's new running mate tested out some of his country critiques at a delegate breakfast. >> you can't stop terrorist attacks if you don't share intel, and you're not going to

share intel, if you shred all the alliances that donald trump is proposing to shred. >> reporter: clinton formally captured the nomination last night, celebrating with the crowd via satellite. >> and i can't believe we just put the biggest crack in that glass ceiling yet. >> reporter: it was an emotional milestone for delegates of her generation, like lana moretsky. >> we're not done yet but it's reachable. >> reporter: and for younger women like jamian smith. >> i already admired her, but then it's like she did all of this on top of just being a great wife, a great mother, a great human being. >> reporter: that was just the message clinton's husband had hoped to impart with a way deeply personal speech that detailed their courtship. >> in the spring of 1971, i met a girl. i was still in awe after more than four years of being around her at how smart and strong and urving and caring she was. she's insatiably curious. i married my best friend.

>> reporter: he said voters should trust his description of his wife, not the g.o.p.'s. >> one is real. the other is made up. ( cheers and applause ) you just have to decide which is which, my fellow americans. >> reporter: president obama will offer his own testimonial here tonight, and according to excerpts of the speech that have just been released he will say, "even in the middle of crisis," his former secretary of state "listens to people and keeps her cool and treats everybody with respect." he will also say, scott, that clinton never gives up. >> pelley: nancy, one of the speakers today will be michael bloomberg, the former mayor of new york, who left the democratic party 16 years ago to become an independent. what are you expecting? >> reporter: that's right. he even considered running for president himself as an independent this year but we're told that he wanted to come here and speak because he has grave concerns about his fellow new york billionaire, and he will

argue tonight that a trump presidency would be devastating, scott, for the economy. >> pelley: nancy cordes on the floor for us. nancy, thank you. well, hillary clinton's running mate, senator tim kaine of virginia, will feature tonight, and he dropped by to test the stage earlier today. in their first and only interview, clinton and kaine sat down with "60 minutes." senator what did you tell her you were good at? >> you know, i've been a city councilman, a mayor. i've been a lieutenant governor and governor, and now in the senate serve on the armed services and foreign relations committee so i'm a utility player. i've done a lot of things and i've seen government from every perspective. i've seen things that work and i've seen things that don't. i want to do everything i can to make sure, "a--" we win and that and that, "b," the presidency of hillary clinton is fantastic, and i think with my two cent i think i can help that happen. >> i just have to add that he plays a mean harmonica. >> pelley: i've heard that. >> yeah. >> have to have a fallback in my line of work. >> pelley: what did you tell her you're not so good at?

>> wow, that's a good question. not so good at. so i don't think i've had one day of my life when i get to the end of the day and felt i got everyone done i wanted to get done that day. there's always this sense of there could have been more, it have been better, it could have been faster. so i don't consider myself diven, but i do consider myself kind of maybe perpetually, slightly dissatisfied if you don't have a sense of discontent you're not going to you're not going to feel the urge to make up tomorrow and do maybe my dissatisfaction at the end of the day is one of the reasons i get up early ready to do more. >> prime time coverage begins at 7:00. i will be joined by nora o'donnell, charlie rose, gayle king. mr. obama has chosen a location

for his presidential library. cbs news has confirmed that it will be built in the jackson park section of chicago. that is just east of the university of chicago where the president once taught law. one day after a french priest was murdered by two men who pledged allegiance to isis, pope francis said today, "the world is at war, and we don't have to be afraid to say this." during a flight to poland, francis told reporters he was not speaking of a religious war. "religions don't want war," he said. "the others want war." coming up next on the "cbs evening news" from philadelphia, serious health risks from dietary supplements, and the ice bucket challenge has led to an important medical discovery. for lower back pain sufferers,

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>> pelley: dietary supplements are a $40-billion-a-year industry in the united states, but a new report finds serious risks. here's dr. tara narula. >> reporter: 43-year-old tattoo artist bobby cimorelli and his wife, margaret, have struggled to get pregnant. cimorelli decided to try over- the-counter testosterone supplements. >> i was really bloated. my blood pressure was, like, really high. >> reporter: within weeks, cimorelli wound up in the emergency room. doctors said the supplements were the likely culprit. >> i had no idea they were side effects. i thought it was just, like, regular vitamins. >> reporter: cimorelli is one of the roughly 200 million americans taking dietary supplements. today, "consumer reports"

identified 15 commonly used supplement ingredients that could be potentially harmful. some examples -- red yeast rice to lower cholesterol may cause kidney and liverroblems. green tea extract powder for weight loss may elevate blood pressure. and kava, to reduce anxiety, may exacerbate depression. one area of concern is supplements do not undergo the rigorous scrutiny as prescription drugs. doctor pieter cohen of harvard medical school. >> the problem is supplements look just like these drugs on store shelves, but the requirements to get a supplement on store shelves is nothing compared to what it takes to sell aspirin or tylenol. >> reporter: dr. aida vega is an internist at mount sinai hospital. she says doctors and patients often don't discuss supplements which can lead to problems. how important is it for physicians to ask patients about supplement uses? >> the most important part of

this is to understand why they're taking it because many times, if you understand why they're taking it you can steer them in the proper direction. >> reporter: the supplement industry says overwhelmingly supplements are safe and play a valuable role. but, scott, doctors worry lax regulation and enforcement means products could be contaminated, mislabeled or interact in dangerous ways with prescription medications. >> pelley: dr. tara narula for us tonight. thank you, doctor. coming up, a hawaiian island grows with the flow. isn't it time to let the real you shine through? introducing otezla (apremilast). otezla is not an injection or a cream. it's a pill that treats plaque psoriasis differently. with otezla, 75% clearer skin is achievable after just 4 months, with reduced redness, thickness, and scaliness of plaques. and the otezla prescribing information has no requirement for routine lab monitoring. don't take otezla if you are allergic

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>> pelley: near big sur on california's central coast, a wildfire turned deadly overnight. a man helping firefighters brush was killed when his bulldozer rolled over. eight hikers were rescued after being cut off for five days with little or no food. a commercial fishing crew was aternded off alaska when their ship took on water and began listing.

the crew jumped into life boats. two ships rushed in to help, and all 46 were plucked from the sea. from the 49th state to the 50th, hawaii's big island is getting bigger. it's growing with the flow. a lava flow from the kilauea volcano has been oozing towards the pacific since may. it finally reached the ocean yesterday. look at that. the explosive collision of fire and water will soon become earth. this h20 raised buckets of dough, and something else. that's coming up. and you're talking to your doctor about your medication... this is humira. this is humira helping to relieve my pain and protect my joints from further damage. this is humira helping me go further. humira works for many adults. it targets and helps to block a specific source of inflammation that contributes to ra symptoms. doctors have been prescribing humira for over 13 years.

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>> reporter: two summers ago, everyone was getting into the act. presidents, movie stars, billionaires. and while the cynics tried to throw their own cold water on the idea, saying it was a way to make a splash without actually doing anything-- >> don't dump a bucket of ice water on your head. it's stupid. >> reporter: the ice bucket challenge raised $115 million in less than two months. >> without the ice bucket challenge, we wouldn't have gotten this money. >> reporter: dr. john landers, a neurologist at the university of massachusetts, runs a lab trying to find genes linked to a.l.s. he got $1.5 million from the challenge. does a million, a million and a half bucks really make a difference? >> you know, not to sound clicheé, but, frankly, every bit counts. genetics, unfortunately, is one of those areas that is on the more expensive side. >> reporter: the ice bucket challenge money led to dr. landers' lab isolating a gene

which researchers are finding nek1 promising for developing treatments for a.l.s. more than 17 million people took the challenge, and to the researchers on the front lines in the battle against a.l.s., it wasn't just a way for them to feel good about themselves. >> the financing, the money that was raised was just an amazing level. >> reporter: it was a way to make a real difference. jim axelrod, cbs news, new york. >> and that's the western edition of the cbs evening news from philadelphia. prime time coverage begins at 7:00. we'll see you then. captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.org

your realtime captioner is linda marie macdonald. donald trump and the [ indiscernible ] deniers are dead wrong and dangerously wrong. >> california's government criticizes donald trump. it's the warmup for a big night for democrats. the commander-in-chief about to make his pitch for hillary clinton in prime time. >> but first, new at 6:00, a crisis crossing the bay. we have seen it on the streets of san francisco. now oakland is becoming overwhelmed with a very visible homeless problem. good evening, i'm veronica de la cruz. >> i'm allen martin. there has been a drastic rise in homeless camps in oakland. city leaders admit they are struggling to come up with a solution. kpix 5's phil matier is in oakland where some say the problem is actually a spillover from san francisco. phil. >> reporter: that's right. we are here at jack london

square which is the showcase of the new oakland that they would like you to see, shops, people going around, tree-lined streets, businesses happening. but there's another side of oakland they don't want you to see. >> reporter: welcome to oakland's hidden homeless. in the past year, there's been a growing collection of shantytowns, tents, lean-to, shacks springing up along the freeways, just out of side of the booming downtown. but sometimes it's right out in fact middle of the street. >> out on 85th and international. they take up half a city block. >> oakland is not unique and really struggling with homelessness but rerecognize this is not just a problem around shelter, it's a mental health problem. it's a substance abuse problem. and we have to ensure we provide services, not just housing to the people that